<template>
    <div class="jc-component__range">
        <div class="jc-range" :class="rangeStatus ? 'success' : ''">
            <i @mousedown="rangeMove" :class="rangeStatus ? successIcon : startIcon"></i>
            {{ rangeStatus ? successText : startText }}
        </div>
    </div>
</template>
<script>
export default {
    props: {
        // 成功之后的函数
        successFun: {
            type: Function
        },
        //成功图标
        successIcon: {
            type: String,
            default: "el-icon-success"
        },
        //成功文字
        successText: {
            type: String,
            default: "验证成功"
        },
        //开始的图标
        startIcon: {
            type: String,
            default: "el-icon-d-arrow-right"
        },
        //开始的文字
        startText: {
            type: String,
            default: "拖动滑块到最右边"
        },
        //失败之后的函数
        errorFun: {
            type: Function
        },
        //或者用值来进行监听
        status: {
            type: String
        }
    },
    name: "Silder",
    data() {
        return {
            rangeStatus: '',

        };
    },
    methods: {
        rangeMove(e) {
            let ele = e.target;
            let startX = e.clientX;
            let eleWidth = ele.offsetWidth;
            let parentWidth = ele.parentElement.offsetWidth;
            let MaxX = parentWidth - eleWidth;
            if (this.rangeStatus) {//不运行
                return false;
            }
            document.onmousemove = (e) => {
                let endX = e.clientX;
                this.disX = endX - startX;
                if (this.disX <= 0) {
                    this.disX = 0;
                }
                if (this.disX >= MaxX - eleWidth) {//减去滑块的宽度,体验效果更好
                    this.disX = MaxX;
                }
                ele.style.transition = '.1s all';
                ele.style.transform = 'translateX(' + this.disX + 'px)';
                e.preventDefault();
            }
            document.onmouseup = () => {
                if (this.disX !== MaxX) {
                    ele.style.transition = '.5s all';
                    ele.style.transform = 'translateX(0)';
                    //执行成功的函数
                    this.errorFun && this.errorFun();
                } else {
                    this.rangeStatus = true;
                    if (this.status) {
                        this.$parent[this.status] = true;
                    }
                    //执行成功的函数
                    this.successFun && this.successFun();
                }
                document.onmousemove = null;
                document.onmouseup = null;
            }
        }

    }
};
</script>
<style scoped>
.jc-range {
    background-color: #ebd8d8;
    position: relative;
    transition: 1s all;
    user-select: none;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 40px;
    width: 340px;
    border-radius: 12px;
    /*no*/
}

.jc-range i {
    position: absolute;
    left: 0;
    width: 60px;
    /*no*/
    height: 100%;
    color: #919191;
    background-color: #fff;
    border: 1px solid #bbb;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
}

.jc-range.success {
    background-color: #7AC23C;
    color: #fff;
}

.jc-range.success i {
    color: #7AC23C;
}
</style>
